Coffee maker



FIG. 1 is a perspective view of the coffee maker;

FIG. 2 is a front elevational view of the coffee maker;

FIG. 3 is a rear elevational view of the coffee maker;

FIG. 4 is a left side elevational view of the coffee maker, the opposite side of which is a mirror image;

FIG. 5 is a top plan view of the coffee maker; and,

FIG. 6 is a bottom plan view of the coffee maker.

The broken lines in the drawing depict portions of the coffee maker that form no part of the claimed design. 

CLAIM The ornamental design for a coffee maker, as shown and described. 